A nurse in an emergency department is reviewing a client's ECG reading.
Which of the following findings should the nurse identify as an indication that the client has first-degree heart block?
Prolonged PR intervals.
Nondiscernible P waves.
More P waves than QRS complexes.
No correlation between P and QRS waves.
The Correct Answer is A
First-degree heart block is a type of atrioventricular (AV) block that involves the consistent prolongation of the PR interval (defined as >0.20 seconds) due to delayed conduction via the atrioventricular node.
This is seen on an ECG as a PR interval greater than 200 ms in length.
Choice B: Nondiscernible P waves are not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice C: More P waves than QRS complexes is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice D: No correlation between P and QRS waves is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A client reports having a fever, night sweats, and cough for 2 days.
These symptoms are associated with infectious diseases such as tuberculosis.
In order to prevent the spread of infection to other patients, this client would require a private room.
A client with diabetes mellitus and acute ketoacidosis does not require a private room based on their diagnosis.
C)A client with a compound fracture of the right femur does not require a private room based on their diagnosis.
D)An older adult client with aspiration pneumonia does not require a private room based on their diagnosis.
Correct Answer is D
Explanation
A pneumothorax is a collapsed lung that occurs when air leaks into the space between the lung and the chest wall.
This can cause diminished breath sounds on the affected side. Distended neck veins are not a symptom of pneumothorax.
B) Itching over the incision is not a symptom of pneumothorax.
C) Irregular heart rate is not a symptom of pneumothorax.
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